The total particulate matter (TPM) and tar commonly associated with tobacco smoke, is also found in similar or higher concentrations in marijuana smoke 17,20
Instead they say the findings add to the evidence that smoking cigarettes of any type is dangerous
Key point : Native cigarettes still contain nicotine and tar the main substances that make smoking addictive and harmful
this is a substantial amount, often chosen by more experienced users or if you want to share with friends
Finally, dont be afraid of nicotine
Combined with the flexibility of the pleated mask material itself, this lets the mask conform to a wide range of face shapes, without creating the pressure points that nose bridges and stiffer materials can (and in my experience, do)